The present invention provides a processing equipment for high density circulating water culture, which comprises a culture tank, an aeration unit, a circulating water processing tank adjacent to the culture tank, a membrane filtration unit and a backwater unit. The culture tank is an octagonal tank formed by surrounding with a plurality of base plate units, and has an overflow weir. The aeration unit is provided with a plurality of air supply pipes to provide sufficient dissolved oxygen to the water in the culture tank, and also float the residual baits and excrement to be pushed out of the tank body. The circulating water processing tank includes a nitrification chamber and a membrane filtration chamber, in which the nitrification chamber is communicated with the overflow weir, and filled with embedding nitrifying bacteria and, the membrane filtration unit is configured in the membrane filtration chamber, and provided with at least a plurality of disc-shaped membrane bags and a water generating pipe. The backwater unit includes a water pump connected with the water generating pipe, and a backwater pipe connected with the water pump and extended to the culture tank.一種高密度養殖循環水的處理設備,包含一養殖槽、一曝氣單元、一鄰接該養殖槽的循環水處理槽、一膜過濾單元及一迴水單元。該養殖槽由複數基板單元圈圍而成的八角型槽體,並具有一溢流堰,該曝氣單元具有複數供氣管,以提供養殖槽內水體充足溶氧,同時將殘餌及排洩物浮除推升出槽體外,該循環水處理槽具有一硝化反應室及一膜過濾室,該硝化反應室與該溢流堰通連,且其內充填有包埋式硝化菌,該膜過濾單元設置在膜過濾室中,具有至少多數碟片狀膜袋及一產水管,該迴水單元具有一接設在該產水管的抽水泵、一接設該抽水泵且延伸至養殖槽的迴水管。100‧‧‧養殖槽120‧‧‧溢流堰200‧‧‧曝氣單元210‧‧‧供氣管211‧‧‧分支管220‧‧‧空氣調節閥230‧‧‧鼓風機300‧‧‧殺菌單元340‧‧‧臭氧供給管400‧‧‧循環水處理槽500‧‧‧膜過濾單元600‧‧‧迴水單元610‧‧‧集液管620‧‧‧抽水泵630‧‧‧迴水管710‧‧‧逆洗管720‧‧‧控制閥